/Engine/Source/Editor/GraphEditor/Public/GraphDiffControl.h
Looks at the two node members and compares them to see if there are any differences. If one of the nodes is nullptr, then this will return true with aEDiffType::NODE_ADDEDresult.
True if there were differences found, false if the two nodes are identical.
bool Diff &40; const FNodeDiffContext & DiffContext, FDiffResults & DiffsOut &41; const